Palace showcased their top-flight ruthlessness with two well-worked and timely goals to book their progression.

Doncaster pressed hard from the start, looking to unsettle the visitors, but Palace took the lead after just eight minutes.

Schlupp surged past a challenge from Alfie May down the left before taking advantage of hesitancy by Paul Downing to slam a low, deflected shot which found the far corner.

Doncaster were not deterred by the early setback and enjoyed plenty of possession and time on the ball.

But they were perhaps guilty of attempting to force their play too much. It meant that while they arguably had the better of the first-half play, they struggled to find anything to trouble Wayne Hennessey in the Palace goal.